CHARGERS NOTES: Bolts sign Wells for offensive line depth

SAN DIEGO ---- The Chargers desperately needed depth on the offensive line. On Tuesday afternoon, they added it.

Versatile guard/tackle Reggie Wells signed a one-year contract with the Chargers, becoming the 53rd and final player on the roster.

Wells has started 91 of the 117 games he has played in his career. He spent his first seven seasons with Arizona but bounced around the last two years. He was a casualty of the final roster cut by Green Bay at the end of training camp.

Wells has mostly played guard. Of his career starts, only 12 have come at tackle.

"We have people that can switch over to tackle if we need it, including (starting left guard) Tyronne Green," Chargers coach Norv Turner said before the signing was announced. "We need a guy who gives us depth along the line."

That's necessary because of the uncertain status of starting left tackle Jared Gaither, who's scheduled to see another independent specialist this week in an attempt to narrow the diagnosis of his back injury.

The team added offensive line depth in Wells, but they might also need it at defensive back. Nickel back Shareece Wright suffered a foot injury in Monday night's win over Oakland, and cornerback Quentin Jammer broke his hand, although he's expected to be able to play with the injury.

No news on Mathews

Chargers running back Ryan Mathews, who's recovering from a broken clavicle sustained last month, still hasn't been cleared for contact, and Turner said there is no timetable to do so.

"It could be tomorrow, or it could be a week from tomorrow," he said. "We're continuing to evaluate him, and hopefully it will be sooner rather than later. We'll get an update (Wednesday) based on how much he's able to do in practice."